CVE-2026-3473 | Mattermost up to 10.11.14/11.4.4/11.5.3/11.6.0 Boards API authorization

SecurityVulns
Yanac

A vulnerability has been found in Mattermost up to 10.11.14/11.4.4/11.5.3/11.6.0 and classified as problematic. Affected by this issue is some unknown functionality of the component Boards API. This manipulation causes authorization bypass.

The identification of this vulnerability is CVE-2026-3473. It is possible to initiate the attack remotely. There is no exploit available.

The affected component should be upgraded.VulDB Recent EntriesRead More